/*
 *  Licensed to the Apache Software Foundation (ASF) under one
 *  or more contributor license agreements.  See the NOTICE file
 *  distributed with this work for additional information
 *  regarding copyright ownership.  The ASF licenses this file
 *  to you under the Apache License, Version 2.0 (the
 *  "License"); you may not use this file except in compliance
 *  with the License.  You may obtain a copy of the License at
 *
 *    https://www.apache.org/licenses/LICENSE-2.0
 *
 *  Unless required by applicable law or agreed to in writing,
 *  software distributed under the License is distributed on an
 *  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 *  KIND, either express or implied.  See the License for the
 *  specific language governing permissions and limitations
 *  under the License.
 */
package org.grails.core.support;

import java.beans.PropertyEditorSupport;

import org.springframework.util.ClassUtils;

/**
 * Converts Strings to Class references for Spring.
 *
 * @author Steven Devijver
 * @author Graeme Rocher
 *
 * @since Aug 8, 2005
 */
public class ClassEditor extends PropertyEditorSupport {

    private ClassLoader classLoader;

    public ClassEditor() {
        super();
    }

    public ClassEditor(Object source) {
        super(source);
    }

    public void setClassLoader(ClassLoader classLoader) {
        if (classLoader != null) {
            this.classLoader = classLoader;
        }
    }

    @Override
    public String getAsText() {
        return ((Class<?>) getValue()).getName();
    }

    @Override
    public void setAsText(String className) throws IllegalArgumentException {
        try {
            Class<?> clazz = ClassUtils.resolvePrimitiveClassName(className);
            if (clazz != null) {
                setValue(clazz);
            }
            else {
                final ClassLoader cl = classLoader != null ? classLoader : Thread.currentThread().getContextClassLoader();
                setValue(cl.loadClass(className));
            }
        }
        catch (ClassNotFoundException e) {
            throw new IllegalArgumentException("Could not load class [" + className + "]!");
        }
    }
}
